iMovie layout is way off please help!!!

I accidentally hit an "X" on the side of my screen when playing round in iMovie and it changed my whole layout from 3 sections to two sections. I've tried everything to figure it out but so far nothing has worked. My iMovie layout looks like this:

and I am trying to figure out how to get it back to look like this:

To be more clear this is the "X" that I hit and I have tried to "display waveforms" "set to original layout" and all that jazz 😟